French Southern and Antarctic Lands
lowest point: Indian Ocean 0 m
highest point: Mont Ross on Iles Kerguelen 1,850 m

Gabon
lowest point: Atlantic Ocean 0 m
highest point: Mont Iboundji 1,575 m

Gambia, The
lowest point: Atlantic Ocean 0 m
highest point: unnamed location 53 m

Gaza Strip
lowest point: Mediterranean Sea 0 m
highest point: Abu 'Awdah (Joz Abu 'Auda) 105 m

Georgia
lowest point: Black Sea 0 m
highest point: Mt'a Shkhara 5,201 m

Germany
lowest point: Neuendorf bei Wilster -3.54 m
highest point: Zugspitze 2,963 m

Ghana
lowest point: Atlantic Ocean 0 m
highest point: Mount Afadjato 880 m

Gibraltar
lowest point: Mediterranean Sea 0 m
highest point: Rock of Gibraltar 426 m

Glorioso Islands
lowest point: Indian Ocean 0 m
highest point: unnamed location 12 m

Greece
lowest point: Mediterranean Sea 0 m
highest point: Mount Olympus 2,917 m